Question

Sita tells Sunita that her age (in years) is equal to the sum of squares of the zeroes of the polynomial x2 + 6x + 10. Further, she asserts that Sunita's age (in years) is equal to the sum of products of the zeroes taken two at a time of the polynomial x³-7x² + 20x-12.

What is age of Sita 3 years hence?
(a) 13
(c) 19
(b) 16
(d) 22
What is age of Sunita 2 years ago?
(a) 10
(c) 18
(b) 14
(d) 22
How much older is Sunita than Sita at present?
(a) 1
(b) 2
(c) 4
(d) 6
What will be the sum of the ages of Sita and Sunita after 4 years?
(a) 48
(c) 40
(b) 44
(d) 36
What was the product of their ages, 2 years ago?
(a) 396
(b) 320
(c) 318
(d) 252​

Answer 1

Step-by-step explanation:

Sita tells Sunita that her age (in years) is equal to the sum of squares of the zeroes of the polynomial x2 + 6x + 10. Further, she asserts that Sunita's age (in years) is equal to the sum of products of the zeroes taken two at a time of the polynomial x³-7x² + 20x-12.

What is age of Sita 3 years hence?

(a) 13

(c) 19

(b) 16

(d) 22

What is age of Sunita 2 years ago?

(a) 10

(c) 18

(b) 14

(d) 22

How much older is Sunita than Sita at present?

(a) 1

(b) 2

(c) 4

(d) 6

What will be the sum of the ages of Sita and Sunita after 4 years?

(a) 48

(c) 40

(b) 44

(d) 36

What was the product of their ages, 2 years ago?

(a) 396

(b) 320

(c) 318

(d) 252